Canon varioPrint 115 Operation Manual page 307

Process Pre-Printed Media and Use of the [Pre-printed mode] Setting
3.
Press [On].
NOTE
Make sure that you put the [Pre-printed mode] setting back to [Off] when you have
finished using pre-printed media.
4. Press [OK].
NOTE
The text on the [Advanced media settings] button has changed into [Custom], which
indicates that a default setting in the [Advanced media settings] section has changed.
Result
The pre-printed mode is active. At the right-hand side of the dashboard the following icon is
displayed.
306 Chapter 13 - Media Handling
Canon varioPRINT DP line